The Royal Dutch Air Force and some crazy-ass event organisers are launching the world's first drone circus. Racing and lasers and ballet, with drones. In Amsterdam. Yeah, a lot of the people going to see this are going to be incredibly stoned. Read More >>

The giant rainbow installation, shown above, adorns Amsterdam's Centraal station, and is more than just a pretty picture: the display is created using liquid crystal optics, showcasing novel ways of dispersing light.